2'-O-methylation in mRNA disrupts tRNA decoding during translation elongation.
2'-O-methylation in mRNA disrupts tRNA decoding during translation elongation.
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DOI:
10.1038/s41594-018-0030-z
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发表时间:
2018-03
影响因子:
16.8
通讯作者:
Puglisi JD
中科院分区:
文献类型:
--
作者:
Choi J;Indrisiunaite G;DeMirci H;Ieong KW;Wang J;Petrov A;Prabhakar A;Rechavi G;Dominissini D;He C;Ehrenberg M;Puglisi JD
Chemical modifications of messenger RNA (mRNA) may regulate many aspects of mRNA processing and protein synthesis. Recently, 2′-O-methylation of nucleotides was identified as a frequent modification in translated regions of human mRNA, showing enrichment in codons for certain amino acid. Here, using single-molecule, bulk kinetics and structural methods, we show that 2′-O-methylation within coding regions of mRNA disrupts key steps in codon reading during cognate transfer RNA (tRNA) selection. Our results suggest that 2′-O-methylation sterically perturbs interactions of ribosomal monitoring bases (G530, A1492 and A1493) with cognate codon-anticodon helices, thereby inhibiting downstream GTP-hydrolysis by elongation factor Tu (EF-Tu) and A-site tRNA accommodation, leading to excessive rejection of cognate aminoacylated-tRNAs in initial selection and proofreading. Our current and prior findings highlight how chemical modifications of mRNA tune the dynamics of protein synthesis at different steps of translation elongation.
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影响因子:
4.8
作者:
Kurata, Shinya;Weixlbaumer, Albert;Suzuki, Tsutomu
通讯作者:
Suzuki, Tsutomu
影响因子:
15
作者:
Chen, Jin;Tsai, Albert;Petrov, Alexey;Puglisi, Joseph D.
通讯作者:
Puglisi, Joseph D.
影响因子:
14.9
作者:
Hoernes TP;Clementi N;Faserl K;Glasner H;Breuker K;Lindner H;Hüttenhofer A;Erlacher MD
通讯作者:
Erlacher MD
DOI:
10.1107/s0907444909052925
发表时间:
2010-02
期刊:
Acta crystallographica. Section D, Biological crystallography
影响因子:
--
作者:
Adams PD;Afonine PV;Bunkóczi G;Chen VB;Davis IW;Echols N;Headd JJ;Hung LW;Kapral GJ;Grosse-Kunstleve RW;McCoy AJ;Moriarty NW;Oeffner R;Read RJ;Richardson DC;Richardson JS;Terwilliger TC;Zwart PH
通讯作者:
Zwart PH
影响因子:
64.8
作者:
Cavaille, J;Nicoloso, M;Bachellerie, JP
通讯作者:
Bachellerie, JP